Here are some calculations for you.
Can you figure out the answers in your head?
No calculator allowed.
| 7 x 60 | 800 x 80 | 80 x 6000 |
| 3 x 0.4 | 0.4 x 0.6 | 0.5 x 0.08 |
| 4 ÷ 40 | 36 ÷ 0.9 | 12 ÷ 0.06 |

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"Excellent I use these regularly" Sue J, Llanidloes
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Keywords: Starter
| Mental Methods
| Place Value
Thursday, October 11, 2007
Good, achieved the results I required
Satisfactory
Didn't really capture the interest of the students
Not for me! I wouldn't use this type of activity.
This starter has scored a mean of 3.4 out of 5 based on 16 votes.
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| 7 x 60 = 420 | 800 x 80 = 64000 | 80 x 6000 = 480000 |
| 3 x 0.4 = 1.2 | 0.4 x 0.6 = 0.24 | 0.5 x 0.08 = 0.04 |
| 4 ÷ 40 = 0.1 | 36 ÷ 0.9 = 40 | 12 ÷ 0.06 = 200 |
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